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Old 07-22-2022, 08:43 AM   #2
JSWolf
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Join Date: Nov 2006
Location: Roslindale, Massachusetts
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Quote:
Originally Posted by quoddle View Post
Hi,
I've been trying to upgrade to Calibre 6.1 on a 64bit W10 pc running Windows Defender. It installs normally but when I run it I get "This application failed to start because no Qt platform plugin could be initialized. Reinstalling the application may fix this problem.
Available platform plugins are: direct2d, minimal, offscreen, Windows"

I've tried reinstalling several times with the same result. I've had to uninstall and go back to 5.44 which woks fine.

Anything I can do to get the new version working?
Try installing 6.1 again and then rebooting into safe mode. If that site won't work, try a repair install while in safe mode.
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